Big budget films (and TV series) can spend an incredible amount of effort and money on detail that most people won't notice or appreciate (or sometimes even makes it into the final cut). Of course, as you say, they can do dumb stuff too.

Which, depending upon your perspective, is an attention to detail that makes the film better even if most people don't consciously notice it or it's a symptom of why studio films can be astonishingly expensive to make.